Home / 779,887,905.15-1,076,360,820.75-493,806,022.14

Finding the Fourth Proportional to 779,887,905.15, 1,076,360,820.75 and 493,806,022.14

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Solution

The fourth proportional to 779,887,905.15, 1,076,360,820.75 and 493,806,022.14 is: 681,525,449.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,887,905.15 : 1,076,360,820.75 = 493,806,022.14 : x
  2. Step 2: Convert to fraction form
    779,887,905.15/1,076,360,820.75 = 493,806,022.14/x
  3. Step 3: Cross multiply
    779,887,905.15x = 1,076,360,820.75 × 493,806,022.14
  4. Step 4: Simplify right side
    779,887,905.15x = 531,513,455,281,903,040
  5. Step 5: Solve for x
    x = 531,513,455,281,903,040/779,887,905.15
  6. Step 6: Final answer
    x = 681,525,449.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.